Argo AG4HP061PH - 2-Way Valve Operation and Wiring; 2-Way Valve General Information; 2-Way Valve Wiring Instructions

Air-to-water Heat Pump
31
NO Valve
NC Valve
L2 (ON)
N
N
N
L1 (OFF)
2-Way Valve
The role of 2-way valve 1 is to control the water flow into the underfloor loop. When “Floor Config” is set to “With” for
either cooling or heating operation, it will keep open. When “Floor Config” is set to “ Without”, it will keep closed.
General Information
Type
Power
Operating Mode
Supported
NO 2-wire
230V 50Hz ~AC
Closing water flow
Yes
Opening water flow
Yes
NC 2-wire
230V 50Hz ~AC
Closing water flow
Yes
Opening water flow
Yes
(1) Normal Open type. When electric power is NOT supplied, the valve is open. (When electric power is supplied,
the valve is closed.)
(2) Normal Closed type. When electric power is NOT supplied, the valve is closed. (When electric power is
supplied, the valve is open.)
(3) How to Wire 2-Way Valve:
Follow steps below to wire the 2-way valve.
Step 1. Uncover the front cover of the unit and open the control box.
Step 2. Find the terminal block and connect wires as below.
XT3 XT3 XT3
2-Way
Valve
2-Way
Valve
2-Way
Valve
WARNING
• Normal Open type should be connected to wire (OFF) and wire (N) for valve closing in cooling mode.
• Normal Closed type should be connected to wire (ON) and wire (N) for valve closing in cooling mode.
• (ON) : Line signal (for Normal Open type) from PCB to 2-way valve
• (OFF) : Line signal (for Normal Closed type) from PCB to 2-way valve
• (N) : Neutral signal from PCB to 2-way valve